am: e4e240f13f * commit 'e4e240f13f6c64049ef346b27d1cf78699fa800e': HWUI: do not call glCopyTexSubImage2D on empty area. Change-Id: Ica6dcf88c3fea43f07352f460343d97599280cdc
am: e4e240f13f * commit 'e4e240f13f6c64049ef346b27d1cf78699fa800e': HWUI: do not call glCopyTexSubImage2D on empty area. Change-Id: Ica6dcf88c3fea43f07352f460343d97599280cdc